Healing the scar was the first gift Kaito gave to Tanjiro.
Ignoring his connection to Kie for a moment, when watching the anime, Tanjiro was truly a male protagonist Kaito liked very much.
He wasn't a saint, but he was kind and gentle, yet not in an annoyingly indecisive way.
Recalling everything Tanjiro went through in the plot, he was also a pitiful boy, yet he shouldered an unimaginably heavy burden.
In short, Tanjiro didn't invoke any negative feelings in Kaito; in fact, if conditions allowed, he would want to help him.
Not for any other reason, just hoping he wouldn't suffer so much...
Really, the original work was just too tragic.
So tragic that several times he wanted to send hate mail to the Author, but couldn't because it would be confiscated by customs.
So, that desire transformed into wanting to drag Kibutsuji Muzan out into the sunlight, even if he was cross-dressing!
Even if he himself was originally a female character!
As for it not being his fault?
Kaito doesn't care about all that. Since this guy created the Demons, he is the ultimate evil!
However, when he actually came to the Demon Slayer World, this thought subsided somewhat.
His thinking shifted more towards letting Tanjiro personally kill Muzan.
Yes, that was Kaito's current intention.
Let Tanjiro become a member of the Demon Slayer Corps, and have the Corps he leads take down Muzan.
Besides that, his own strength was simply too great. Killing Muzan would be like using a cannon to kill a mosquito.
It felt beneath him to even bother with Muzan.
"Kaito-nii, thank you so much!!"
"Yes, thank you, Kaito-nii!"
Tanjiro excitedly ran over and prostrated himself on the ground to give thanks. Nezuko did the same, and Hanako and Takeo, a bit slower to react, also expressed their thanks excitedly.
For these children, Kaito was truly miraculous.
He had used some unknown method to heal their brother's scar.
Even though he looked handsome with it, having no scar was even better!
That way, their brother would have an easier time finding a wife, right?
Well...
Don't be surprised; people married quite early in this era too.
Not only because they matured early, but also due to the contemporary environment, most young men and women started discussing marriage at sixteen. Tanjiro was only three years away.
"Hehe, alright, alright. Besides that, I have something else to tell you. It's something you must do."
"Kaito, you mean..."
Upon hearing this, Kie immediately recalled the fragmented future Kaito had mentioned when he first joined the chat.
In that future, Kie's entire family would die, and Tanjiro would go to Mount Sagiri to apprentice himself to a master.
'Now that Kaito was bringing it up, did that mean Tanjiro still had to follow that future, apprentice himself, and go slay those Demons?'
"Mrs. Kamado, although the future can be changed, the future I saw indicates that your son Tanjiro is very important."
"Although I can help you eliminate all the Demons in one go... your son's destiny is to come and eradicate these evil spirits."
"Like the savior or hero in a play. If I forcefully prevent it, it might have certain effects on your son."
"It's like a person born to be an emperor. Even if he starts as a beggar, he will eventually become the emperor."
"But if he is destined to be emperor but is obstructed, it could lead to more unforeseen consequences."
Kaito spoke earnestly, gently walking over to Kie to calm her as she became anxious.
He made it sound so serious to ensure her agreement.
Besides, it was a chance to gain more favor.
With his mastery of spiritual transmission, his skin had long since thickened beyond the penetrating power of a starship destroyer.
Anyway, what he was doing wasn't wrong. Tanjiro was naturally meant to walk this path, and his talent shouldn't go to waste.
After he returns successful, wouldn't that give him more status and power, and better ability to protect his family, than just being an innkeeper!?
"Kaito-nii, you mean... you want me to go kill those Demons?"
Since their family moved to this town, Tanjiro had heard about the Demons.
They sounded terrifying. Every night, one or two people would mysteriously disappear, only to be found later as bloodstained scraps of clothing.
So how could an ordinary person like him go kill Demons? How could he possibly succeed?
"Yes, that is your destiny."
Kaito sighed, had everyone sit down again, and began to earnestly explain what he knew.
How the Kamado Family was nearly annihilated, and how they hadn't moved to the town.
Then how Tanjiro, with his Demon-turned-sister, journeyed to slay Demons and find a cure for her.
After he finished, Tanjiro's body trembled uncontrollably, his hands gripping his clothes tightly.
Clearly, he couldn't accept that his original fate was so tragic.
If his mother, Kie, hadn't entered that miraculous chat space and changed their destiny, he would be...
"Tanjiro, I will give you the means to become stronger. Are you willing to continue fulfilling your mission?"
"Kaito-nii, I don't want to leave home, but if I can save more people... no, if that was originally my destiny, then I should do it now too!"
Tanjiro looked up sharply, his previous disbelief and panic instantly replaced by determination.
Hearing that his original self had become a member of the Demon Slayer Corps, slaying Demons and saving many people, he felt even more that he should do this.
Moreover, Kaito had said he was truly talented. If not him, then who?
With great power comes great responsibility.
Tanjiro hadn't studied books, but he could understand a similar idea.
If he possessed the talent to save others, the talent to slay Demons, then why shouldn't he become that kind of hero?
"Tanjiro..."
"Brother!!"
Kie, Nezuko, and the others called out to Tanjiro, fear filled their voices.
As family, they were selfish; how could their own loved ones be less important than strangers?
However...
They understood the greater good!
"Mother, Nezuko, Takeo, Hanako..."
"This was always the path I was meant to walk. I'm just better prepared now."
"Honestly, Mother, I'm even happier that you're all safe. Because I simply cannot imagine how much pain that version of me would have been in..."
"So... I need to do what I was originally meant to do, for the sake of that version of myself."